NZOG Updates on Drilling at Pateke-4H Well Offshore Taranaki

New Zealand Oil & Gas Ltd revealed Tuesday that the operator of the Pateke-4H well in the Tui oil fields offshore Taranaki in New Zealand has advised that the well was at a measured depth of 12,103 feet (3,689 meters) at 6.00AM NZDT today.

The Blow Out Preventer (BOP) was successfully installed and tested and the 13.375 inch casing shoe was drilled out. A 12.25 inch section was drilled vertically to 9,842 feet (3,000 meters), at which point directional drilling commenced at an inclination of 45 degrees.

The 12.25 inch section is planned to be drilled to a total depth (TD) of 13,451 feet (4,100 meters).

Pateke-4H is a northern extension of the existing Pateke reservoir in the producing Tui area oil fields in petroleum mining permit (PMP) 38158, approximately 31 miles (50 kilometers) off the coast of Taranaki, New Zealand, in water depth of about 406 feet (124 meters).

Drilling began Feb. 10. The well is expected to take around two months to drill to a planned total measured depth of 17,588 feet (5,361 meters), including a 4,173 foot (1,271 meter) horizontal section.

In the event that commercial volumes are discovered the well will be completed and later tied into the existing Tui production facilities. Production of first oil would be in 2015.

New Zealand Oil & Gas has 27.5 percent interest in Tui.

The other Tui joint venture partners are:

  • AWE Limited (via subsidiaries) (Operator): 57.5 percent
  • Pan Pacific Petroleum (via subsidiaries): 15.0 percent


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